The invention provides a walking hydraulic system of an aerial work platform, and belongs to the technical field of hydraulic pressure. The problem that an existing hydraulic system is large in pressure loss is solved. The walking hydraulic system of the aerial work platform comprises a valve body provided with an oil inlet channel, an oil return channel and at least two sets of working oil channels, the oil return channel is provided with a first balance valve, the valve body is further provided with an oil return opening, the two sets of working oil channels are connected in series through the series oil channel, and the oil return channel is further provided with a second balance valve. The oil return channel is provided with a flow choking section communicated with an outlet of the first balance valve and an inlet of the second balance valve, the opening pressure of the second balance valve is smaller than that of the first balance valve, and the valve body is further provided with an oil supplementing channel communicated with the flow choking section and the series oil channel. When the pressure difference between the series oil duct and the outlet of the second balance valve is smaller than the set pressure, the second balance valve can adjust the oil return flow of the oil return duct. The walking hydraulic system of the aerial work platform has the advantage that the pressure loss of the hydraulic system is reduced.
本发明提供了一种高空作业平台的行走液压系统,属于液压技术领域。它解决了现有液压系统压力损失大的问题。本高空作业平台的行走液压系统包括具有进油油道、回油油道、至少两组工作油道的阀体,回油油道上设有第一平衡阀,阀体还具有回油口、串联两组上述工作油道的串联油道,回油油道上还设有第二平衡阀,回油油道具有连通第一平衡阀出口与第二平衡阀入口的阻流段,第二平衡阀的开启压力小于第一平衡阀的开启压力,阀体还具有连通阻流段和串联油道的补油油道,当串联油道与第二平衡阀出口的压差小于设定压力时第二平衡阀能调节回油油道的回油流量。本高空作业平台的行走液压系统具有降低液压系统压力损失的优点。
Walking hydraulic system of aerial work platform
一种高空作业平台的行走液压系统
2024-06-04
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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